org.mule.runtime.api.notification

Interface NotificationListenerRegistry

public interface NotificationListenerRegistry

Allows to register/unregister NotificationListeners for Notifications fired by the Mule container, extensions and applications.

Since:

4.0

Field Summary

Fields

Modifier and Type	Field and Description
static String	REGISTRY_KEY

Method Summary

Modifier and Type	Method and Description
<N extends Notification> void	registerListener(NotificationListener<N> listener) Registers a NotificationListener.
<N extends Notification> void	registerListener(NotificationListener<N> listener, Predicate<N> selector) Registers a NotificationListener.
<N extends Notification> void	unregisterListener(NotificationListener<N> listener) Unregisters a previously registered NotificationListener.

Field Detail

REGISTRY_KEY

static final String REGISTRY_KEY

See Also:

Constant Field Values

Method Detail

registerListener

<N extends Notification> void registerListener(NotificationListener<N> listener)

Registers a NotificationListener. The listener will be notified when a particular event happens within the server. Typically this is not an event in the same sense as a Mule Event (although there is nothing stopping the implementation of this class triggering listeners when a Mule Event is received).

Type Parameters:

N - the concrete type of the notification to be handled by the listener

Parameters:

listener - the listener to register

registerListener

<N extends Notification> void registerListener(NotificationListener<N> listener,
                                               Predicate<N> selector)

Registers a NotificationListener. The listener will be notified when a particular event happens within the server. Typically this is not an event in the same sense as a Mule Event (although there is nothing stopping the implementation of this class triggering listeners when a Mule Event is received).

Type Parameters:

N - the concrete type of the notification to be handled by the listener

Parameters:

listener - the listener to register

selector - a filter to apply on a fired Notification before calling the listener with it. Non-null.

unregisterListener

<N extends Notification> void unregisterListener(NotificationListener<N> listener)

Unregisters a previously registered NotificationListener. If the listener has not already been registered, this method should return without exception

Type Parameters:

N - the concrete type of the notification handled by the listener

Parameters:

listener - the listener to unregister